EP2164549A1 - Endoscopic bite block for use with cannula - Google Patents

Endoscopic bite block for use with cannula

Info

Publication number
EP2164549A1
EP2164549A1 EP08756647A EP08756647A EP2164549A1 EP 2164549 A1 EP2164549 A1 EP 2164549A1 EP 08756647 A EP08756647 A EP 08756647A EP 08756647 A EP08756647 A EP 08756647A EP 2164549 A1 EP2164549 A1 EP 2164549A1
Authority
EP
European Patent Office
Prior art keywords
patient
bite block
channel
channel member
port
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP08756647A
Other languages
German (de)
French (fr)
Other versions
EP2164549A4 (en
Inventor
Ii Donald L. Reynolds
Randy R. Stephens
Richard W. Flaker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ethicon Endo Surgery Inc
Original Assignee
Ethicon Endo Surgery Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ethicon Endo Surgery Inc filed Critical Ethicon Endo Surgery Inc
Publication of EP2164549A1 publication Critical patent/EP2164549A1/en
Publication of EP2164549A4 publication Critical patent/EP2164549A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/06—Respiratory or anaesthetic masks
    • A61M16/0666—Nasal cannulas or tubing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00147—Holding or positioning arrangements
    • A61B1/00154—Holding or positioning arrangements using guiding arrangements for insertion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04—Tracheal tubes
    • A61M16/0488—Mouthpieces; Means for guiding, securing or introducing the tubes
    • A61M16/049—Mouthpieces
    • A61M16/0493—Mouthpieces with means for protecting the tube from damage caused by the patient's teeth, e.g. bite block
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04—Tracheal tubes
    • A61M16/0488—Mouthpieces; Means for guiding, securing or introducing the tubes
    • A61M16/0497—Tube stabilizer
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/08—Bellows; Connecting tubes ; Water traps; Patient circuits
    • A61M16/0816—Joints or connectors
    • A61M16/0841—Joints or connectors for sampling
    • A61M16/085—Gas sampling
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/24—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the mouth, i.e. stomatoscopes, e.g. with tongue depressors; Instruments for opening or keeping open the mouth
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/06—Respiratory or anaesthetic masks
    • A61M16/0683—Holding devices therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2202/00—Special media to be introduced, removed or treated
    • A61M2202/02—Gases
    • A61M2202/0208—Oxygen
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2230/00—Measuring parameters of the user
    • A61M2230/40—Respiratory characteristics
    • A61M2230/43—Composition of exhalation
    • A61M2230/432—Composition of exhalation partial CO2 pressure (P-CO2)

Definitions

  • the present invention relates, in general, to bite blocks for use in endoscopic surgical procedures, and in particular, to endoscopic bite blocks for use in procedures involving sedation and analgesia systems.
  • END6134WOPCT respiratory orifices usually accomplished via oral-nasal cannula. Difficulties sometimes arise, however, when simultaneously managing the scope, delivering supplementary oxygen, and sampling respiratory gasses via the oral cavity. If the oral cavity could be reserved for exclusive use by the endoscope and the nasal passages used for oxygen delivery and respiratory sampling, the difficulty would be greatly reduced. Unfortunately, this method would require that the patient inhale and exhale only through the nasal passages for the duration of the procedure; in a real-world scenario, however, this is not the case.
  • a doctor may stick a finger inside a patient's mouth, outside of the bite block, in order to control the endoscope near the opening to the trachea or esophagus. This requires that the finger be inserted at least to the depth of the end of the bite block, which may cause the bite block to move around. This adds to the risk that, during all of the jostling of the bite block associated with the maneuvering of the endoscope and insertion of a finger, the oral ports of the cannula may be unintentionally relocated away from the oral cavity.
  • END6134WOPCT It is therefore the object of the present invention to provide a bite block with means for locating and protecting the oral ports of an oral-nasal cannula and to facilitate simultaneous use of the oral cavity for an endoscopic diagnostic or surgical procedure, supplemental oxygen delivery, and respiratory sampling.
  • FIG. 1 is a front perspective view of a bite block in accordance with the present invention
  • FIG. 2 is back perspective view of a bite block in accordance with the present invention.
  • FIG. 3 is a side view of a bite block in accordance with the present invention, shown in a section view of a patient's mouth;
  • FIG. 4 is a perspective view of a bite block in accordance with the present invention and a typical oral-nasal cannula, shown together, interfaced as they would be used during a procedure;
  • FIG. 5 is a front view of a bite block in accordance with the present invention.
  • FIG. 6 is a side section view of a bite block in accordance with the present invention and a typical oral-nasal cannula, shown together, interfaced as they would be used during a procedure; and
  • FIG. 7 is a rear perspective view of an alternate embodiment of the present invention.
  • the bite block 8 of the present invention consists of a generally elliptical cylindrical main body 20, having a proximal end, which sits outside of a patient's mouth, and a distal end, which sits inside a patient's mouth.
  • Main body 20 surrounds main oral passage 7, which is sized to allow for passage of an endoscope and ventilation of the patient.
  • flange 14 Integral to the proximal end of main body 20 is flange 14, which sits outside of a patient's lips and serves both to locate bite block 8 relative to the patient's mouth and protect the patient's lips and teeth from an endoscope.
  • Flange 14 is integral to main body 20 at distal surface 22. Attached at each side of flange 14 is strap attachment wing 6 for strap 19 that goes around the patient's head and helps secure bite block 8.
  • a raised top surface 17 and bottom surface 18 for seating patient's upper teeth and lower teeth, respectively.
  • upper protruding retention feature 9 Located at the distal end of top surface 17 is upper protruding retention feature 9, protruding up generally perpendicular to top surface 17.
  • Upper protruding retention feature 9 serves as a stop to keep bite block 8 from being expelled from a patient's mouth by requiring the mouth (or more particularly, the teeth) to be opened wide enough to get around retention feature 9.
  • bottom surface 18 is lower protruding retention feature 11 serving the same purpose.
  • FIGs. 4 and 6 some features of the present invention are intended to interface with an oral-nasal cannula 1 , generally known in the art, with oxygen outlet port 2 and CO 2 sampling inlet port 3.
  • An oral-nasal cannula 1 generally known in the art, with oxygen outlet port 2 and CO 2 sampling inlet port 3.
  • Oxygen outlet port 2 is the end of the oxygen delivery fluid line that delivers oxygen into the patient's oral cavity
  • CO 2 sampling inlet port 3 is the end of the fluid line of a capnometry or capnography system through which expired CO 2 enters from a patient's oral cavity.
  • Oxygen outlet port 2 and CO 2 sampling inlet port 3 consist of tubular extensions downward from the main body of cannula 1 , bent in a generally perpendicular fashion towards the patient's mouth. In the absence of a bite block, the openings of oxygen outlet port 2 and CO 2 sampling inlet port 3 would rest at the opening to the oral cavity.
  • Internal gas channel 10 consists of two parallel adjacently- connected sub-channels, each of semi-circular cross section. Internal gas channel 10 occupies the area under raised top surface 17. Internal gas channel 10 allows the exchange of gas from the proximal end (external to the patient's mouth) of bite block 8 to the distal end (internal to the patient's mouth), and vice versa, without using a significant amount of the cross-sectional area of main oral passage 7, which is reserved for use by the endoscope. As seen in Fig.
  • internal gas channel 10 provides a path via one sub-channel for oxygen to flow from oxygen outlet port 2 of an oral-nasal cannula 1 into the patient's mouth and, via the other sub-channel, for CO 2 to flow from the patient's mouth into CO 2 sampling inlet port 3 of cannula 1.
  • the sub-channels of internal gas channel 10 can be used interchangeably for either oxygen or CO 2 , depending on where the respective ports are located on cannula 1.
  • Oxygen port support 4 and CO 2 port support 5 protrude from proximal surface 21 of flange 14, and proximal from internal gas channel 10.
  • Oxygen port support 4 and CO 2 port support 5 also extend in the distal direction for approximately the thickness of flange 14, as best seen in Figs. 1 and 6, partially separating main oral passage 7 and internal gas channel 10.
  • Oxygen port support 4 and CO 2 port support 5 each terminate on their proximal ends in an upward- curving quarter-circular shaped feature, which provides a means for more securely locating near the oral cavity oxygen outlet port 2 of the oxygen delivery system and CO 2 sampling inlet port 3 of a capnometry or capnography system.
  • Oxygen port support 4 and CO 2 port support 5 are intended to provide a means for protecting the
  • oxygen port support and CO 2 port support
  • FIG. 7 An alternate embodiment of the present invention, shown in Fig. 7, adds additional functionality by allowing a doctor to insert a finger a short distance into the patient's mouth to help guide the endoscope down into the trachea or esophagus, while again preventing excessive jostling of bite block 8 and cannula 1.
  • main body 20 has curved cutouts 23 on its distal end, on both of its sides.
  • strap attachment wing extenders 24 integral to flange 14, and extending out on both of its sides, are strap attachment wing extenders 24, each consisting of a thin arced, 'c'-shaped protrusion.
  • Cutouts 23 and strap attachment wing extenders 24 are sized and located such that a finger may be inserted through the open side of the 'c' of strap attachment wing extender 24 and past cutout 23 into the patient's mouth. Strap attachment wing extenders 24 also locate the strap attachment wings 6 such that the strap is not in the way of a finger. In this manner, a doctor would be able to easily guide an endoscope with a finger without using any of the cross sectional area of main oral passage 7, and without too much jostling of bite block 8 and cannula 1.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Anesthesiology (AREA)
  • Emergency Medicine (AREA)
  • Hematology (AREA)
  • Otolaryngology (AREA)
  • Surgery (AREA)
  • Pathology (AREA)
  • Molecular Biology (AREA)
  • Medical Informatics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biophysics (AREA)
  • Endoscopes (AREA)

Abstract

A bite block that is inserted into a patient's mouth during an endoscopic diagnostic or surgical procedure that has a channel for receiving an endoscope or other surgical instrument through the patient's mouth and additional channels transmitting a gas to the patient and transmitting expired gas from the patient.

Description

ENDOSCOPIC BITE BLOCK FOR USE WITH CANNULA
[0001] Cross Reference to Related Applications
[0002] The present application claims the priority benefit of United States provisional patent application, serial no. 60/941,707, filed on June 4, 2007, the contents of which are incorporated by reference in their entirety herein.
[0003] Field of the Invention
[0004] The present invention relates, in general, to bite blocks for use in endoscopic surgical procedures, and in particular, to endoscopic bite blocks for use in procedures involving sedation and analgesia systems.
[0005] Background of the Invention
[0006] During some medical procedures, specifically endoscopic procedures, it is necessary to insert medical instruments, such as an endoscope, into the mouth and down the trachea or esophagus of a patient. It is common to use in such procedures a bite block or mouthguard to protect both the patient's mouth from the endoscope and the endoscope from the patient's mouth. The bite block or mouthguard essentially maintains the patient's mouth in the open position, providing an opening through which the endoscope can be passed, and prevents the patient from biting down on the endoscopic instruments, which are often quite expensive. Bite blocks capable of such function are generally known in the art; bite blocks designed for use with sedation and analgesia delivery and patient monitoring systems, however, are not.
[0007] In order to increase comfort and reduce patient resistance to the advancing of the scope, patients are often sedated during endoscopic procedures. In the case when the particular sedation drugs are respiratory depressants, there exist certain well-known risks related to patient respiration, including hypoventilation, oxygen desaturation, and apnea. In order to mitigate these risks, supplementary oxygen and respiratory monitoring are often utilized. Both the administration of supplementary oxygen and the sampling of respiratory gasses for monitoring require access to the patient's
END6134WOPCT respiratory orifices, usually accomplished via oral-nasal cannula. Difficulties sometimes arise, however, when simultaneously managing the scope, delivering supplementary oxygen, and sampling respiratory gasses via the oral cavity. If the oral cavity could be reserved for exclusive use by the endoscope and the nasal passages used for oxygen delivery and respiratory sampling, the difficulty would be greatly reduced. Unfortunately, this method would require that the patient inhale and exhale only through the nasal passages for the duration of the procedure; in a real-world scenario, however, this is not the case.
[0008] It is therefore desirable for endoscopic procedures that require sedation to allow maneuvering of an endoscope into the oral cavity simultaneous with oral and nasal oxygen delivery and expired gas sampling. It indeed requires little imagination to see that accommodating all three activities simultaneously through the oral cavity with instruments not designed to be used together would prove troublesome. It follows that, as the endoscopy is the main focus of the procedure, it would take priority in use of the oral cavity over the other two functions. While focusing on the endoscope, an oral-nasal cannula is rather easily bumped and relocated during the maneuvering of the scope, leaving its oral ports situated too far from the oral cavity and occasionally causing bruising internal to the nasal passages. The consequence is decreased effectiveness in the administration of supplementary oxygen and sampling of respiratory gasses, which in turn may compromise patient safety.
[0009] In addition, in current practice, some doctors use a finger to help guide the endoscope into the mouth and down the trachea or esophagus of the patient. To do so, a doctor may stick a finger inside a patient's mouth, outside of the bite block, in order to control the endoscope near the opening to the trachea or esophagus. This requires that the finger be inserted at least to the depth of the end of the bite block, which may cause the bite block to move around. This adds to the risk that, during all of the jostling of the bite block associated with the maneuvering of the endoscope and insertion of a finger, the oral ports of the cannula may be unintentionally relocated away from the oral cavity.
END6134WOPCT [0010] It is therefore the object of the present invention to provide a bite block with means for locating and protecting the oral ports of an oral-nasal cannula and to facilitate simultaneous use of the oral cavity for an endoscopic diagnostic or surgical procedure, supplemental oxygen delivery, and respiratory sampling.
[0011] Brief Description of the Drawings
[0012] The novel features of the invention are set forth with particularity in the appended claims. The invention itself, however, both as to organization and methods of operation, together with further objects and advantages thereof, may best be understood by reference to the following description, taken in conjunction with the accompanying drawings in which:
[0013] FIG. 1 is a front perspective view of a bite block in accordance with the present invention;
[0014] FIG. 2 is back perspective view of a bite block in accordance with the present invention;
[0015] FIG. 3 is a side view of a bite block in accordance with the present invention, shown in a section view of a patient's mouth;
[0016] FIG. 4 is a perspective view of a bite block in accordance with the present invention and a typical oral-nasal cannula, shown together, interfaced as they would be used during a procedure;
[0017] FIG. 5 is a front view of a bite block in accordance with the present invention;
[0018] FIG. 6 is a side section view of a bite block in accordance with the present invention and a typical oral-nasal cannula, shown together, interfaced as they would be used during a procedure; and
[0019] FIG. 7 is a rear perspective view of an alternate embodiment of the present invention.
[0020] Detailed Description of the Invention
END6134WOPCT [0021] Referring to Fig. 1 and Fig. 2, the bite block 8 of the present invention consists of a generally elliptical cylindrical main body 20, having a proximal end, which sits outside of a patient's mouth, and a distal end, which sits inside a patient's mouth. Main body 20 surrounds main oral passage 7, which is sized to allow for passage of an endoscope and ventilation of the patient. Integral to the proximal end of main body 20 is flange 14, which sits outside of a patient's lips and serves both to locate bite block 8 relative to the patient's mouth and protect the patient's lips and teeth from an endoscope. Flange 14 is integral to main body 20 at distal surface 22. Attached at each side of flange 14 is strap attachment wing 6 for strap 19 that goes around the patient's head and helps secure bite block 8.
[0022] Referring to Fig. 3, extending from the proximal to distal end of main body 20, are a raised top surface 17 and bottom surface 18 for seating patient's upper teeth and lower teeth, respectively. Located at the distal end of top surface 17 is upper protruding retention feature 9, protruding up generally perpendicular to top surface 17. Upper protruding retention feature 9 serves as a stop to keep bite block 8 from being expelled from a patient's mouth by requiring the mouth (or more particularly, the teeth) to be opened wide enough to get around retention feature 9. Similarly, on bottom surface 18 is lower protruding retention feature 11 serving the same purpose.
[0023] Referring also now to Figs. 4 and 6, some features of the present invention are intended to interface with an oral-nasal cannula 1 , generally known in the art, with oxygen outlet port 2 and CO2 sampling inlet port 3. A representative oral-nasal cannula is described in pending application US-2006-0042636, the contents of which are incorporated by reference in its entirety herein. Oxygen outlet port 2 is the end of the oxygen delivery fluid line that delivers oxygen into the patient's oral cavity, and CO2 sampling inlet port 3 is the end of the fluid line of a capnometry or capnography system through which expired CO2 enters from a patient's oral cavity. Oxygen outlet port 2 and CO2 sampling inlet port 3 consist of tubular extensions downward from the main body of cannula 1 , bent in a generally perpendicular fashion towards the patient's mouth. In the absence of a bite block, the openings of oxygen outlet port 2 and CO2 sampling inlet port 3 would rest at the opening to the oral cavity.
END6134WOPCT [0024] Referring also now to Fig. 5, internal to main body 20, and extending from the proximal end to the distal end of main body 20, and adjacent to main oral passage 7, is internal gas channel 10. Internal gas channel 10 consists of two parallel adjacently- connected sub-channels, each of semi-circular cross section. Internal gas channel 10 occupies the area under raised top surface 17. Internal gas channel 10 allows the exchange of gas from the proximal end (external to the patient's mouth) of bite block 8 to the distal end (internal to the patient's mouth), and vice versa, without using a significant amount of the cross-sectional area of main oral passage 7, which is reserved for use by the endoscope. As seen in Fig. 4, internal gas channel 10 provides a path via one sub-channel for oxygen to flow from oxygen outlet port 2 of an oral-nasal cannula 1 into the patient's mouth and, via the other sub-channel, for CO2 to flow from the patient's mouth into CO2 sampling inlet port 3 of cannula 1. The sub-channels of internal gas channel 10 can be used interchangeably for either oxygen or CO2, depending on where the respective ports are located on cannula 1.
[0025] Oxygen port support 4 and CO2 port support 5 protrude from proximal surface 21 of flange 14, and proximal from internal gas channel 10. Oxygen port support 4 and CO2 port support 5, each consist of a generally flat extension extending from proximal surface 21, and generally symmetrical with respect to the vertical plane aligned longitudinally along main body 20. From their points of attachment located on the side away from the center axis of main body 20, oxygen port support 4 and CO2 port support 5 slope slightly downward toward the center of main oral passage 7. Oxygen port support 4 and CO2 port support 5 also extend in the distal direction for approximately the thickness of flange 14, as best seen in Figs. 1 and 6, partially separating main oral passage 7 and internal gas channel 10. This arrangement is designed to allow the ends of oxygen outlet port 2 and CO2 sampling inlet port 3 of cannula 1 to rest inside internal gas channel 10, as shown in Fig. 6. Oxygen port support 4 and CO2 port support 5 each terminate on their proximal ends in an upward- curving quarter-circular shaped feature, which provides a means for more securely locating near the oral cavity oxygen outlet port 2 of the oxygen delivery system and CO2 sampling inlet port 3 of a capnometry or capnography system. Oxygen port support 4 and CO2 port support 5 are intended to provide a means for protecting the
END6134WOPCT location of oxygen outlet port 2 and CO2 sampling inlet port 3 against jostling from the movement of the scope. The terms "oxygen port support" and "CO2 port support" are used only illustratively in this description; since the supports are generally symmetrical, they could be used interchangeably, depending on which side of cannula 1 each port was located.
[0026] An alternate embodiment of the present invention, shown in Fig. 7, adds additional functionality by allowing a doctor to insert a finger a short distance into the patient's mouth to help guide the endoscope down into the trachea or esophagus, while again preventing excessive jostling of bite block 8 and cannula 1. In the alternate embodiment, main body 20 has curved cutouts 23 on its distal end, on both of its sides. In addition, integral to flange 14, and extending out on both of its sides, are strap attachment wing extenders 24, each consisting of a thin arced, 'c'-shaped protrusion. Cutouts 23 and strap attachment wing extenders 24 are sized and located such that a finger may be inserted through the open side of the 'c' of strap attachment wing extender 24 and past cutout 23 into the patient's mouth. Strap attachment wing extenders 24 also locate the strap attachment wings 6 such that the strap is not in the way of a finger. In this manner, a doctor would be able to easily guide an endoscope with a finger without using any of the cross sectional area of main oral passage 7, and without too much jostling of bite block 8 and cannula 1.
[0027] While preferred embodiments of the present invention have been shown and described herein, it will be obvious to those skilled in the art that such embodiments are provided by way of example only. In addition, it should be understood that every structure described above has a function and such structure can be referred to as a means for performing that function. Numerous variations, changes, and substitutions will now occur to those skilled in the art without departing from the invention. Accordingly, it is intended that the invention be limited only by the spirit and scope of the appended claims.
END6134WOPCT

Claims

We Claim:
1. An endoscopy bite block defining a front flange to overlap a patients mouth and an opening for communicating with the patient's oral cavity, the opening comprises a first channel member extending into the patient's oral cavity and having a proximal end and a distal end, wherein the first channel member comprises a generally circular-shaped channel having a lower surface and an upper surface and the upper surface defines a opening for a second channel member coincident with the proximal end and the distal end.
2. The bite block of claim 1 , wherein the first channel member is oval-shaped.
3. The bite block of claim 1, wherein the second channel member comprises a first arcuate sub-channel and a second arcuate sub-channel.
4. The bite block of claim 1 , wherein a first support member extends proximally from the front flange.
5. The bite block of claim 4, wherein a second support member extends proximally from the front flange.
6. The bite block of claim 1 further comprising a port adjacent the first channel sized to accommodate a finger or surgical instrument.
7. The bite block of claim 6, wherein the first channel comprises lateral cut-out extending from the distal end and toward the proximal end.
8. The bite block of claim 1, wherein the second channel member is sized to accommodate a tube for delivering a gas to the patient or monitoring the patient's exhalation.
9. The bite block of claim 1, wherein the second channel member is sized to accommodate a tube for delivery a gas to the patient and a tube for monitoring the patient's exhalation.
10. A kit for performing a endoscopic procedure comprising:
a. A bite block defining a front flange to overlap a patients mouth and an opening for communicating with the patient's oral cavity, the opening comprises a first channel member
END6134WOPCT extending into the patient's oral cavity and having a proximal end and a distal end, wherein the first channel member comprises a generally circular-shaped channel having a lower surface and an upper surface and the upper surface defines a opening for a second channel member coincident with the proximal end and the distal end; and
b. a cannula having a first port for receiving a gas, a second port for transmitting a gas, a third port for delivering a gas to the patient and a fourth port for receiving a gas from the patient, wherein the second channel member is sized to accommodate the third and fourth ports .
END6134WOPCT
EP08756647.7A 2007-06-04 2008-06-03 Endoscopic bite block for use with cannula Withdrawn EP2164549A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US94170707P 2007-06-04 2007-06-04
PCT/US2008/065630 WO2008151180A1 (en) 2007-06-04 2008-06-03 Endoscopic bite block for use with cannula

Publications (2)

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EP2164549A1 true EP2164549A1 (en) 2010-03-24
EP2164549A4 EP2164549A4 (en) 2016-03-23

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US (1) US8028704B2 (en)
EP (1) EP2164549A4 (en)
JP (1) JP5518700B2 (en)
CN (1) CN101678185B (en)
AU (1) AU2008259772B8 (en)
CA (1) CA2690065C (en)
WO (1) WO2008151180A1 (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2227282A1 (en) * 2007-11-25 2010-09-15 Oridion Medical (1987) Ltd. Improved endoscopic bite block
US8651102B2 (en) * 2008-01-28 2014-02-18 Donald F. Guillette Emergency ventilation apparatus, system, and method
JP5385599B2 (en) * 2008-12-11 2014-01-08 日本光電工業株式会社 Byte block
US20100147298A1 (en) * 2008-12-12 2010-06-17 A Plus Medical Infant pacifier fluid delivery device and pacifier assembly
US20110214670A1 (en) * 2010-03-02 2011-09-08 Kost Louis G Bite block
US8220461B1 (en) 2011-02-01 2012-07-17 Guerra Phillip B Oral airway
US9092559B2 (en) 2011-08-16 2015-07-28 Ethicon Endo-Surgery, Inc. Drug delivery system with open architectural framework
US8684728B1 (en) * 2011-09-23 2014-04-01 Ryan B. Wiesemann Dental shield
BR112015022334A2 (en) 2013-03-13 2017-07-18 Bracco Diagnostics Inc adjustable bite blocks
GB201317499D0 (en) * 2013-10-03 2013-11-20 Flexicare Medical Ltd Naso-Oral Device
US10173023B1 (en) 2014-02-07 2019-01-08 Victor G. Ghobrial Oropharyngeal device
USD754846S1 (en) * 2014-08-13 2016-04-26 Gi Supply, Inc. Medical bite block
USD754847S1 (en) * 2014-08-13 2016-04-26 Gi Supply, Inc. Medical bite block
US10010313B2 (en) 2015-05-18 2018-07-03 Richard L. Arden Mandibular subluxation device and method
US10258319B2 (en) 2015-05-18 2019-04-16 Richard L. Arden Airway assist device and method
US10342526B2 (en) 2015-07-01 2019-07-09 Richard L. Arden Airway assist device and method
CA3039784A1 (en) 2016-10-13 2018-04-19 Hollister Incorporated Endotracheal tube holding device
CN107088047B (en) * 2017-06-19 2018-12-25 朱司军 Safety medical treatment opener
CN107595452B (en) * 2017-10-26 2023-10-24 刘奕博 Oral cavity sheath for drug inhalation
JP7064920B2 (en) * 2018-03-27 2022-05-11 日本光電工業株式会社 Respiratory aid
CN108392714B (en) * 2018-04-12 2024-01-30 太仓市第一人民医院 Multifunctional laryngoscope lens with tooth pad function and capable of removing dirt and working method thereof
CN110477971A (en) * 2019-09-03 2019-11-22 上海市胸科医院 Sheath structure, trans- bronchoscope and its application method
CN110898307A (en) * 2019-12-31 2020-03-24 合肥达米医疗科技有限公司 Painless gastroscope ventilation device
USD940300S1 (en) * 2020-04-28 2022-01-04 John Neil Haugsrud Mouthpiece
CN113768504B (en) * 2021-09-15 2023-09-19 首都儿科研究所 Multifunctional convulsion tooth protection biting force testing device and testing method

Family Cites Families (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US39175A (en) 1863-07-07 Improved life-preserver
US803475A (en) 1904-11-15 1905-10-31 James W Dennis Dental applicator.
US2127215A (en) 1937-03-27 1938-08-16 James T Gwathmey Expansible respiratory airway
US3756244A (en) * 1971-06-10 1973-09-04 Hudson Oxygen Therapy Sales Co Breathing aid
US3771514A (en) 1971-06-29 1973-11-13 Concept Laryngoscope
US3774616A (en) 1972-02-01 1973-11-27 Perry Plastics Inc Endotracheal tube holder and airway
US4270531A (en) 1978-12-11 1981-06-02 Blachly Paul H Oropharyngeal airway and bite block assembly and method of use for closed pulmonary ventilation
US4425911A (en) 1981-07-27 1984-01-17 Raymond Luomanen Bite-block
US4495945A (en) 1982-03-29 1985-01-29 Liegner Kenneth B Bite block
IL76939A (en) 1984-11-13 1990-01-18 Andros Analyzers Inc Adaptor assembly for airway tube
GB2170106B (en) 1985-01-28 1988-10-05 Dr Kenneth B Liegner Bite block
GB2173105A (en) 1985-04-04 1986-10-08 Neil Christopher Barnes Mouthpiece
DE3543931A1 (en) 1985-12-12 1987-06-19 Ruediger Dr Dinse Breathing mask
US4793327A (en) 1986-01-21 1988-12-27 Frankel Alfred R Device for opening a patient's airway during automatic intubation of the trachea
US4992046A (en) 1989-02-03 1991-02-12 The University Of Tennessee Research Corporation Dental mouth prop for isolating a tooth
US4944313A (en) 1989-09-06 1990-07-31 E-Z-Em, Inc. Single-use annular mouthpiece
AU634847B2 (en) * 1989-12-01 1993-03-04 Thomas Julius Borody Oxygenating oral medical appliance
US5308317A (en) 1990-06-07 1994-05-03 Arch Development Corporation Protective tube laser endoscopy
US5069668A (en) 1990-07-12 1991-12-03 Boydman Scott A Patient controlled analgesia system
USD329901S (en) 1991-05-13 1992-09-29 G. I. Supply, Inc. Pediatric endoscopic bite block
US5174284A (en) 1991-09-05 1992-12-29 G.I. Supply, Inc. Endoscopic bite block
US5421327A (en) * 1992-07-22 1995-06-06 Mary E. Flynn Bite block having finger-accommodating openings
US5318017A (en) 1992-11-05 1994-06-07 Ellison Lee H Guide for transesophageal echo probe
US5431158A (en) 1993-04-20 1995-07-11 Tirotta; Christopher F. Endoscopy breathing mask
US5386821A (en) 1993-06-08 1995-02-07 Poterack; Karl A. Bite block for oral passageway
US5368562A (en) 1993-07-30 1994-11-29 Pharmacia Deltec, Inc. Systems and methods for operating ambulatory medical devices such as drug delivery devices
ZA946814B (en) 1993-09-16 1996-11-05 Smiths Ind Med Syst Inc Airway monitoring adapter and use thereof
US5649540A (en) * 1994-01-12 1997-07-22 Snorex, Inc. Tongue positioning device for medical procedures
US5413095A (en) 1994-04-15 1995-05-09 Arrow Precision Products, Inc. Mouthpiece with oxygen receiving and directing structure
US5513634A (en) 1994-05-06 1996-05-07 Chek-Med Systems, Inc. Combination integral bite block airway and nasal cannula
US5590643A (en) 1995-01-17 1997-01-07 Flam; Gary H. Mandibular protracting oral intubating airway
US5513627A (en) 1995-01-27 1996-05-07 Flam; Gary H. Esophageal tracheal intubator airway
US5620408A (en) 1995-04-14 1997-04-15 Vennes; Jack A. Endoscopic over-tube
US5655519A (en) 1995-11-14 1997-08-12 Alfery; David D. Patient airway bite block
US5699787A (en) 1996-06-20 1997-12-23 Thompson; Clarence Mouthpiece for endotracheal tube
IL119131A (en) 1996-08-26 2002-04-21 Oridion Medical Ltd Multiple channel sample port for airway adaptor
US5800387A (en) 1996-10-04 1998-09-01 Alaris Medical Systems, Inc. Safety monitoring apparatus for a patient care system
US5957885A (en) 1996-11-06 1999-09-28 Alaris Medical Systems, Inc. Oximetry monitored, patient controlled analgesia system
US5846182A (en) 1997-09-15 1998-12-08 Olympus America, Inc. Esophageal overtube for smoke evacuation
IL130369A (en) 1999-06-08 2007-10-31 Oridion Medical 1987 Ltd Neonatal airway adapter
US6386199B1 (en) 1999-09-29 2002-05-14 David D. Alfery Perilaryngeal oral airway
US6379312B2 (en) 1999-12-28 2002-04-30 O'toole James End tidal carbon dioxide sampling device
US6257238B1 (en) 2000-05-25 2001-07-10 Nizam M. Meah Bite block for upper gastrointestinal endoscopy with tongue depressor
WO2001091838A1 (en) 2000-05-31 2001-12-06 U.S. Army Institute Of Surgical Research Catheter securing device and bite block
GB2364644A (en) 2000-07-15 2002-02-06 Donald Munro Miller A streamlined liner of the pharygeal airway (SLIPA)
US6494209B2 (en) 2001-04-02 2002-12-17 George Kulick Method and apparatus for treatment of snoring, hypopnea and apnea
US6517549B1 (en) * 2001-08-24 2003-02-11 Core Dynamics, Inc. Medical mouthpiece with elliptical passageway
US6877512B2 (en) 2001-09-05 2005-04-12 The Regents Of The University Of California Airway device
CN2536250Y (en) * 2002-02-04 2003-02-19 向彬 Bite rim style tracheal cannula fixer
AU2003210633A1 (en) * 2002-07-02 2004-01-23 The Children's Hospital Of Philadelphia Mandibular occlusal inhibitor
GB0218868D0 (en) 2002-08-14 2002-09-25 Nasir Muhammed A Improved airway management device
US7278420B2 (en) 2002-09-24 2007-10-09 Thomas Jefferson University Oropharyngeal airway
AU2003282489A1 (en) 2002-10-03 2004-04-23 Scott Laboratories, Inc. Bite block apparatus and method for use with a sedation an analgesia system
EP3061483B1 (en) 2003-05-20 2020-08-12 Oridion Medical 1987 Ltd. Endoscopic bite block
AU2003904278A0 (en) 2003-08-13 2003-08-28 Thomas J. Borody Improved oral oxygenating device
US20050267415A1 (en) 2004-05-14 2005-12-01 C. R. Bard, Inc. Medical devices and methods of use
US7837651B2 (en) 2004-08-31 2010-11-23 Ethicon Endo-Surgery, Inc. Infusion pump

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008151180A1 *

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CA2690065C (en) 2016-01-19
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JP2010528772A (en) 2010-08-26
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CN101678185A (en) 2010-03-24
CN101678185B (en) 2012-06-27

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